Numbness and tingling in the right hand when the patient sleeps at night may be due to pressure on the right side of the body, such as pressure on the hand and upper limb and not turning over, and poor blood circulation in the patient’s right hand will lead to numbness and pain. If the right hand is not compressed at night when the patient sleeps, numbness and tingling in the right hand and persistently not relieved, it is considered to be caused by cerebrovascular disease, and this condition is mostly caused by diseases such as cerebral infarction. It is recommended that the patient promptly consult a hospital and have a magnetic resonance brain imaging examination to clarify and then carry out symptomatic treatment. If the patient has cervical spondylosis, cervical disc herniation or straightening of the physiological curvature of the cervical spine, the nerve roots may be compressed during sleep at night due to improper sleeping posture, and the patient may also experience numbness and tingling in the right hand.